Breaking News
Comments
Newest First | Oldest First | Threaded View
DrQuine
User Rank
CEO
re: Printed electronics harvest energy from waste heat
DrQuine   4/4/2013 12:28:44 AM
NO RATINGS
The "not in my backyard" syndrome typically keeps these power stations away from highly populated areas where the excess heat could be used to heat buildings. Next best is efficient energy extraction at every stage in the system (from steam to hot water to cold water).

zhgreader
User Rank
Rookie
re: Printed electronics harvest energy from waste heat
zhgreader   4/3/2013 1:08:26 PM
NO RATINGS
We have used the waste heat to rear fish, to supply central heating. however , its pity to waste those heat energy.

R Paul
User Rank
Rookie
re: Printed electronics harvest energy from waste heat
R Paul   4/2/2013 4:55:27 PM
NO RATINGS
I agree with the "no free lunch" dictum, however, there is also no sense in not availing one self to a low-cost lunch. Well aware that the intuitively obvious solution is not always viable, couldn't we take advantage of convection air currents swirling upward through the cooling towers to capture energy via wind turbines? Recognizing air flow reduction would lower cooling efficiencies, is there a middle ground where some portion of blatantly excess losses might be recaptured?

Consultofactus
User Rank
Rookie
re: Printed electronics harvest energy from waste heat
Consultofactus   4/2/2013 11:38:47 AM
NO RATINGS
The conversion of waste heat to usable power is easier said than done because of the "no free lunch clause" of thermodynamics. Besides, the idea of using TEGs to capture waste heat in generating station (silicon-germanium TEGs) is not new, and has not met with much economic success in the past due to the difficulty in economically producing vast amounts of of SiGe material (although there are dozens of other TE materials, most include one or more expensive/rare elements)...but I wish the professor good luck.

EREBUS0
User Rank
Rookie
re: Printed electronics harvest energy from waste heat
EREBUS0   4/1/2013 8:02:39 PM
NO RATINGS
I agree. The amount of wasted heat energy is staggering. A lot of our power generation wastes about 50% or more of the initial thermal energy. Even capturing a fraction of the waste would be a significant increase in power available. Just a thought.



EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Aging Brass: Cow Poop vs. Horse Doo-Doo
Max Maxfield
32 comments
As you may recall, one of the things I want to do with the brass panels I'm using in my Inamorata Prognostication Engine is to make them look really old. Since everything is being mounted ...

EDN Staff

11 Summer Vacation Spots for Engineers
EDN Staff
11 comments
This collection of places from technology history, museums, and modern marvels is a roadmap for an engineering adventure that will take you around the world. Here are just a few spots ...

Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
11 comments
- An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
45 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Flash Poll
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)